burgin



Jul 10, 1923. 1,461,439

W. W. BURG|N CHECK VALVE Filed April 12 1921 .INVENTOR.

BYQ

ATTORNEY Patented duly ll),

UNETEQ VJALDO W. BURGIN, 0F LDIDI, CALIFORNIA.

CHEGK VALVE.

Application filed. April 12, 1921. Serial No. 466,707.

To all whom 2'7; may concern.

Be it known that l, Warns W. BURGIN, a citizen of the United States, residing at Lodi,1county oi Elan Joaquin, State of: Ualiforia, have invented certain new and useful improvements in Check Valves; and I do declare the following to be a full, clear, and exact description or the same, reference being had to the accompanying drawings, and to the characters of reference marked thereon, which form a part of this application.

This invention relates to improvements in check-valves such as are used in pipe lines and other locations, the principal object of the invention being-9: to provide a seat member :l'or the valve which may be easily re versed so that a spare seat tor the valve is bad, which will of course en hle the valve to give twice the len 'th of service over what is had with an ordinary valve without regrindinn; the seat.

i inother object to provide check valve of the ball type which may he constructed as a unit article to be inserted or interposed in pipe. That is, the valve seat the ball are mounted together, and cannot become accidentally displacedirom each other when handled, without the need of any sepa- M or attachments, not a part of the check-valve, being; necessary to hold the ball in place.

Jiturther object of the invention is to provide a simple and inexp sive device and yet one which will. be e ceedingly effective for the purposes which it is designed.

These objects I accoinplisi by n'ieans oi such structure and relative arrangement of parts as will. fully appear by a perusal of the tollowinp; specification. andclsirn.

larged somewhat as at 4: to form a seat for a ring 5, the inner periphery of which is preferably flush with the bore l The upper and inner edge of this ring forms the s at for ball 6, which is held in place while allowed a certain amount of vertical n'ioveinent by means of a plurality of pins 7 secured into the upper :tace of the body 1 beyond the ring, these pins when nor mally positioned bending inwardly above the ball and toward each other, as shown at 8.

in order to enable the seat-ring to be re inoved and reversed, opposed slots 9 are cut in the walls of the bore 1, and extend from the bottom to the enlarged bore i, so that a tool may be ins-reed to abut against the lower face of the ring to drive the some out withou nicking or otherwise marringthe seat edge.

To remove the ball and seat member, it is only necessary to give each of the pins 7 a half turn, so that the overhanging portions 8 project outwarlly, as indicated by the dotted lines in Fig, 2.

The body 1 is adapted to be screwed directly in o a pipe or into a ring or sleeve fitter! therein, so that the flange in connection with a gasket, will make tight joint with the pipe or sleeve. 7

From the foregoing" description it will be readily seer that have produced such a device as substantially fulfills the objects of the invention as set forth herein.

While this specification sets forth in detail the present and preferred construction of the device, still in practice such deviations from such detail may be resorted to and do not form av departure from the spirit of the invention, L s defined by the appended claim.

l-lavi thus described my invention, what I laiin as new and useful and desire to secure by Letters Patent is:

A checlr valve including a tubular body, a closure member for the body, and a ring reniovably fitted into one end of the body, the inner aerioheral edges of the ring being adapted to either at a time form a seat for said closure member the body-bore being provided with longitudinal slots extending to the ring from the opposite end of the body.

In testimony whereof l affix my signature.

WALDO W, BURGIM 

